Automobile-radiator.



C. W. DIPPBRT. AUTOMOBILE RADIATOR.

APPLIGATION FILED NOV. B, 1911. y

Patented NOV. 26, 1912.

Cri.

- injury a maximum radiatingv r orrion.

AUTOMOBILE-RADIATOR.

To all 'whom 'itmefz/ concern:

Be .it known that vcitizen of the United States, residing at Detroit, county of `lVayne, State of Michigan, have invented a certain new and useful Improvement in Automobile-Radiators, and declare the following ,to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and usethe same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to animprovement in automobile radiators, shown in the accompanying drawings and more particularly described in the following specification and claims;

@ne ofthe objects ofmy invention is to` .construct a radiator havingv a large radiating surface, the tubes being relatively broad and narrow that the volume of water circulating through the tubes ymay be spreadover surface g-it being possible to provide more tubes of this form throughout a given area` .than ifthey were cylindrical in cross-section.y

Another Objectis tov rovide a staggered arrangement of the tubes that the air in passing vbetweenl them may cover the entire surface of each tube. y

Another object is to provide crenelated or indented bridge strips separating the fins to Which'they are solderedthe arrangement being such that the outer set of bridge strips are flush with the outer surface of the radiator and infront of the rst row of tubes thereby protecting tl'ietubes from accidental by presenting a substantially solid front, the combined edges of the bridge strips and fins offering great resistance to any accidental blow ithe radiator may be called uponto sustain; i

A further object is to arrange the crenelated. strips so as to present when assembledl a cellular wall through which the air may rush, thus insuring a moreeven distribution of the air currents.v

Another object istoconstruct the fins in such manner as to insure the greatest econonly in the yuse of material,-the fins with their projecting tongues, which are lodged between each'pair of the front vrow of bridge strips, beingycut from a singleblanll', the tongues` interlocking thus saving considerable material, as clearly indicated in Fig. l.

Another obiect is to assemble the fins,

I, CHARLES W. DIrPnRT,

specification of Letters Patent. Application ined November e, 1'911.

Patented Nov. 26, 1912. y seriai No. 658,654. A

tubes, and bridge` plates in such manner that they may be readily soldered to form a single ,unit vit-hout danger of the bridge strips being displacedV or the .fins improperly spaced.

Other advantages and improvements will hereafter appear.

Inthe drawings :*Figure l is a plan view of a pair of fins out from a single plate,- the projecting tongues of each n interlockmg to provide against waste in cutting the blank. Fig. 2 is a fragmentary perspective viewA of several 'superimposed ns held in spaced relation by crenelated or indented bridge strips placed between the fins. Fig. 3 is a plan view of one of the tins, the llicatlon of the bridge strips being indicated in dotted lines. Fig. 4 is a fragmentary front elevation of the radiator. Fig. 5 is a vertical cross-sectional view through a fragment of the water circulating tubes and the tins surrounding the same. Fig. 6 is an elevation of a fragment of one of the bridge strips.

Referring now to the letters of reference placed upon the drawings A indicate fins, perforated for the passage of water' tubes, inclosed within the wall (not shown) of the radiator;-the fins being provided Witha plurality of elongated openings A arran ed in staggered relation, having an upstandmg bur a surrounding the openings.

B denotes a plurality of Water circulating tubes projecting through the several openings of the superimposed lins. -The front edge of the tins of the radiator is' notched to form tongues a which respectively rest upon and between the crenelated bridge strips C,-the outer edge of the latter being flush with the edge of the projecting tongues a of the fins. Between the two rear rows of tubes and the several fins are similar bridge strips C', the indentations in said bridge `strips being preferably in line with those in tlie front though this is not essential. The required number of tins', bridge strips, and water tubes, having been assembled, the fins and strips are soldered together to form a" single unit, by dipping or they may ,be attac ed together in any approved manner.

It will be noted that when the several ns are assembled, (their projecting tongues lodged between the several bridge sti-Ws forming the front of the radiator), the. parts may be clamped together thus materially simplifying the operation of soldering/and thereby reducing the cost of mannfaciut; The rear set lof drawings,

thereby relieving the tubes of -their being sheared with each culat-ing pipes arranged in them against injur Irated to admit the bridge strips may' also be flush with the outer edge of the fins though I prefer to placethem in front of the 'last row of tubes as indicated in the for the reason that the tubes. serve as a support for the bridge strips in the act of dipping them in the solder. While it is not essential that all the tubes should be soldered to the tins it will be apparent that the rear row of tubes will be soldered to the tins by the operation of soldering the rear row of bridge strips to the tins.

In perforating the fins for the passage of water tubes, I prefer to surround the openings-with a slight bur a, as indicated in the drawings, the purpose being to present a' relatively large surface abutting' the tubes any chance of or cut by the edge of the iins-through some accidental blow the fins.

`mayreceiv`efit being borne in mind that thens and tubes are material, which increases cidental shearing.

It will be noted that the edges of the suformed of'relatively thin the liability of ac- `perimposed fins and bridge strips present a very strong and rigid structure which serve as an armor for the water tubes, protecting from an accidental blow that might otherwise destroy or injure their eiiiciency. The cellular form of the radiator front, due to the peculiar form and manner of assembling the indented bridge strips, also serves to divide up the air currents causing them to circulate around the tubes greatly adding to the efficiency of the radiator. By forming the tubes in an elongated shape and arranging them in staggered re lation, a greater number of tubes may be located in the same area than would be possible if the ordinary form ofcircular tubes were employed. So also the staggered arrangement insures the air coming in contact tube and circulating completely around it in passing through the radiator.

Having thus described my invention, what I claim is l. In a radiator, a plurality of water tubes, a plurality ot' superposed iin plates provided with perforations to receive the water tubes, the outer edge of each iin plate being notched to form tongues with the tongues of each iin plate being disposed out of alinement with the next iin plate, angularly corrugated spacing strips interposed between each iin plate, each corrugated strip resting upon the tongues of one of the iins with the tongues of the next above iin resting on the corrugated strip.

2. In a radiator, a plurality of water cirrows, a plurality of radiating ins spaced apart and `perfoprojection of the pipes through said ins, and a series of crenelated bridge strips each interposed and-confined vbracing said pipes,

lthe front ofthe radiator.

between maintain the ins in spaced relation, one set 'of said bridge strips being located in front ot' the outer row ,of water tubes and {iush with the front of-the radiator.

3. In a radiator, a plurality of water cir culating pipes arranged in rows, a plurality of perforated fin plates spaced apart emthe outer edges 4of said plates being notched to form projecting tongues, and crenelated bridge strips interposed between said iin plates and secured thereto, one set of said bridge strips being engaged to the projecting tongues of the n plates and infront of the front row of water tubes.

4. In a radiator, a plurality of water circulating pipes arranged in row's, a plurality of perforated iin plates spaced apart embracing said pipes, the outer edges of said plates being notched to form lprojecting tongues, and crenelated bridge strips interposed between said fin plates and secured thereto, one set of said bridge strips being engaged to the projecting tongues of the iin plates and in front of the front row of water tubes, the other set being located in front of the back row of water tubes, and for the purpose described.

5. In a radiator, a plurality of water circulating pipes elongated in cross-section, a plurality of tin plates spaced apart and perforated for the passage of the pipes, and crenelated bridge strips interposed between the fin plates, each fined between adjacent plates and soldered thereto to maintain and support the tin plates in spaced relation, some of the bridge strips being flush with the front of the radiator.

6. In a radiator, a plurality of pipes arranged in rows, a plurality of radiating plates spaced apart and perforated to resubst antially as bridge strip being con.

adjacent fins and Isecured thereto to l ceive the pipes, rowsof crenelated bridge strips interposed between the iin plates, each bridge strip being coniined between adjacent plates and soldered thereto .to maintain and supportthe fin plates in spaced relation, said crenelated strips being assembled to form a cellular wall in front of the front row of tubes whereby the vair currents passing through the radiator may be evenly directed and distributed throughout and around the several pipes.

7 In a radiator, a plurality of circulating water pipes, a plurality of spaced radiating plates provided with perorat-ions to receive the pipes, each radiating plate being entirely out of contact with adjacent plates, rows of crenelated spacing strips interposed between the radiating plates to maintain the latter in spaced relation, the edges of front' row of spacing strips being iush with L 8. In a radiator, 'a plurality of circulating rugated spacing strips interposed between,

each plate and disposed in the same direction as the plates and at right angles to the water pipes.

, In testimony whereof, I sign this specification 1n the presence of two Witnesses.

CHARLES W. DIPPERT. Witnesses GRACE E. llixiioor, SAM URL E. 'FHoMAs.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

